Mudiay is a career 39.8% shooter so I wouldn't be at all surprised if he ends up in the low 40's by the end of the year.
I am not sure Exum can handle more than 6-7 minutes right now. His plays and mostly his decisions go downhill after the first few minutes.
Mudiay is an ISO ballhog. Exum is turnover prone, but plays like a point guard. If Exum got more playing time and Snyder didn't give him such a short leash, I'm sure he'd turn the ball over less.